tech

Students use pocket book to solve Boyle's law problems

Density ColumnDensity Column

How does the density column work?

Holli Grubs density

Holli Grubs measures the volume of a liquid.

density cylinders

Density Cylinders

Chemical Reactions

Copper Chloride reacts with Aluminum

Single replacement reaction

penny nuclear demo

Sean demonstrates half life of an atom using pennies. Pennies have a 50% chance of heads or tails. Atoms have a 50% chance of changing into a new substance during their half life period.

Eddie doing nuclear chemistry

Eddie with assistance from Trey counting nuclear change.

cheyene

Cheyenne counts radioactive decay using pennies.

     
Quantitative Analysis
The single replacement of copper II chloride with iron to form copper is an example of quantitative data. Students were evaluated based on the amount of copper produced.

burning magnesium

Do not look directly at the burning magnesium.

kindsey

Kindsey Gibson displays her happiness with observing magnesium burn.

crucible

The crucible can get very hot. Students are warned not to touch the white even though it may appear cold.

Cheyene

Cheyenne and Shawnice examine the spectrum of oxygen at 687nm and hydrogen at 656nm, 488nm, and 434nm.

Olivia and Gabby examine neon with the spectroscope.

burn gun powder

Gun powder consists of 7.5 parts Carbon, 1.5 parts Potassium Nitrate, and 1 part Sulfur.

Kate

Katie C. burns metal to produce a visible line spectrum.

Dead fish

Acidification of the Ocean by Benjamin Christian Bird

Expository writing

Expository writing prompt on Hemp

When compounds bond together they form crystal structures. Ice crystals form a Hexagonal structure.

larry

Larry Fortney has the mono-clinic crystal structure of sucrose or table sugar in his mind by viewing it through a microscope.

kendrick

Kendrick Burnett shows his expertise with balancing equations.

synthesis

Iron and Sulfur are combined in a synthesis reaction with the addition of heat as a catalyst.

malek

Malik Petty demonstrates the single replacement reaction of hydro chloric acid with zinc to produce hydrogen gas and zinc chloride. The hydrogen is lit with a wood split producing a pop.

decomp

Demi Gardner and Sean Brown observe the decomposition of calcium carbonate with the addition of heat.

Hemp Expository Paper by Stevie Kute

hemby Zhanee Masden

washingto hempDeclaration of Independence was written on Hemp by Ryan Hay

  • Determination of Chemical Formulas: Lab-AIDS Determination of Chemical Formulas: Lab-AIDS
     

steel w

Briana Turner records the procedure followed in the lab.

steel 2

Marie Teria stirs the solution to increase the rate of reaction.

steel 3

Katelynn Creak makes copper.

steel wool 6

Copper filtered, so that it can dry and the actual yield determined.

Markia

Markeia Porter tries to determine the unknown formula.

 Ben Bird demonstrates his creative song writing abilities.

 

Amazing mole by Dakota Chappell and Adam C.

 

Demi Gardner lectures to a group of friends about the mole.

 

Chris B asked for a mole of water, 18ml, or a sip of water.

 Sarah Parker and Olivia Guerrero present the mole.

cheyene

Victoria Kilpatrick demonstrates a change in temperature will cause a change in pressure. Gay-Lussac gas law

boyles

Boyles Law apparatus

boyles 2

Alston Sickles makes a measurement of volume change.

boyles 3

Shuvai Mtangi makes a measurement of volume change.

Test over Gas laws, click to take the test.

burn 5

Students used a paper clip to hold the food item while it burned and melted the ice in the metal container.

burn 2

Hayden Wihjelm burns an almond.

Cori Venning and Natasha Fenwick follow directions.
Calorimetry is a technique that is used to determine the heat involved in a chemical reaction. When determining the heat of combusiton of a substance or the caloric value of foods, the measurements are often made using a bomb calorimeter. In this experiement the student used a simplified set up measuring the volume of water that melted from the ice in the metal container. The heat of fusion for water is 80 cal/g, so this value can be use to determine the energy content of food.

 

true blue
Are you true blue?

Justin 1

Justin Zaring Conservation of Mass 1

justin 2

Justin Zaring Conservation of Mass 2

mass 1

mass 2

Was conservation of mass observed? Explain.

Chromatography - separation of a mixture

Forensic scientists use certain chromatography techniques to analyze drugs and dyes in cloth fibers.

Calculate the Rf value for each color by measuring the distance the substance travels divided by the distance developer traveled.

Slime

Slime
Elmer's Glue is made up of polyvinyl acetate, which reacts with water to some extent to replace some of
the acetate groups with OH (alcohol) groups. The B-OH groups on the borax molecules react with the acetate groups on the glue molecules (relatively long polymer chains) to eliminate acetic acid and form new bonds between the borax and two glue molecules. The linking of two glue molecules via one borax molecule is called polymer cross-linking and it makes a bigger polymer molecule, which is now less liquid-like and
more solid.

slime 2

Rachel Denny makes slime.

jeremy

Jeremy Bonner examines his magnesium oxide ash. Christopher Cassetta Christopher Burton, and Zeb Fields measured out 0.5g Mg and cremated it in a crucible to obtain 0.75g MgO. The 0.5g Mg is mathematically calculated to produce 0.84g MgO. Thus the 0.75/0.84 g MgO x 100 produced an 89% yield.

Test over periodic trends, click here to take the test.

Sean Brown

Sean Brown examines Neon gas through a project star spectrometer to determine the spectrum.
Neon has an orange red color and Mercury has a light blue transmission.

 

matt f

Matthew F. burns some potassium chloride.

kevin

Kevin burns an unknown metal. Part of the lab experiment concerned the identification of an unknown from the testing of known's.

jenny daily1

Carbon Dioxide Emmisons: by Jenny Daily

Sydney White

Carbon Dioxide : How much is too much? by Sydney White

anion notes

Anion notes showing steps for testing four known ions for determination of an unknown.

Detectives in mystery novels often rush evidence from the crime scene to the lab for analysis. In this experiment, the student became the chemical detective. They conducted laboratory analysis to determine the ionic composition of an unknown anion solution. The four known anions were as follows: Chloride, Phosphate, Sulfate, and Carbonate. The teacher made the unknown solution to be Sulfate. The students performed the required tests and most got the identification of the unknown correct.

cation notes

Steps for testing known cat ions for the determination of an unknown.

A cat ion is an ion that has a positive charge. It has a positive charge, because the atom has lost an electron and now the atom is not balanced or neutral. The electron is negative and the proton is positive. So when an electron leaves the atom the proton is the unit that provides the positive charge to the ion. Students use caution with Sulfuric Acid, Hydrochloric Acid, Sodium Hydroxide, and Potassium Chicano.

hemp 14

Laughing Grass and the Law by Zachary Stevenson
youtubeYou tube project rubric

sarah parkerHemp in America by Sarah Parker

 

Making Table Salt

Best method for making NaCl, since there is usually more than one way to solve a problem. Students make the same product using different reactants and determine which method has the higher percent yield.
steel wool 9
Copper forming from the single replacement reaction of copper II Sulfate with steel wool.

st

Jacob Baldwin preparing the funnel to filter the copper.

chris

Christopher Cassetta reads and follows the directions.

 

In this experiment students determined the elements that are in the same family and the formulas of the compounds formed by observing the properties of compounds of the elements.

lakale

Lakale M uses the franklin apparatus to show how stressed she is after taking the science diagnostic test for the course.

tyrie

The Temperature-Pressure Law was studied by another French scientist. Joseph Gay-Lussac studied hot-air balloons in the early 1800’s.  He studied the relationship between Temperature and Pressure.  He found that when the temperature is increased, the Pressure of a gas also increased, and vice versa.  He found the relationship was linear, but not quite direct.  Similar to Charles’ Law, we must use The Kelvin temperature scale in order for the relationship to be direct.  All we have to do is add 273 to our temperature celcius, and we get a direct relationship between volume and temperature.

cheyene

Demi Gardner demonstrates the franklin apparatus.

sophia

Sophia Musa with the palm glass demonstrates the contrasting effects of heat and gravity on a volatile liquid.
The glass is filled with a colored liquid, such as methylene chloride, having a low vapor point. The air in the tube ahs been partially evacuated. The apparatus is held by hand at an angle, heat from the hand providing the input of energy.
A fluid with a low vapor point will evaporate with a relatively low input of thermal energy. The lowered pressure due to the evacuation of the tube enables the fluid to evaporate even more easily with the thermal input from the student’s hand.
Once the fluid reaches the upper bulb, it will cool and return to a liquid state. As it flows down to the hand-held bulb under the influence of gravity, it is reheated and evaporates again.
boyles 6
Carson Mesmer makes a measurement of volume change.

burn

Gabby Wihjelm and Marie Teria burn goldfish crackers to determine calorie content.

Mike Hamm and Ebony Harl observe the heat given off by a pecan.

Isaiah McMillen and Tyrie Johnson burn breakfast cereal.

burn

Malik Petty is always on task and doing what he is suposed to do. He is a great student.

 

 

 

sarin gas

Sarin Gas: Pesticide to chemical weapon by Christoper Cassetta

Sarin use in Syria

Sarin use in Syria by Victora Boller

Sarin Gas

Sarin Gas: Should we get involved? By Kristen Daniel

Sarah Parker

Sarin Gas: A danger to Society! by Sarah Parker

Jeremy Smith

Sarin Gas and War by Jeremy Smith

     
Crime Science
In this experiment, the student observed reactions that occur to identify two unknowns. The known solutions are mixed with each of three different reagents. Using these reactions as a reference the student developed a systematic set of tests to identify the unknown solutions.

 

Uranium

Fukushima: Nuclear Disaster
By: Margaret McCarthy

 

 

Ben Greep

The Fukushima Disaster
By Ben Greep

 

fukushima

Fukushima Expository Paper
By Jenny Daily

 

https://encrypted-tbn2.gstatic.com/images?q=tbn:ANd9GcRdaLQXMLEGDpx11yYcUAP8VPOxdcvVAYNS-a7NpIf2Y4ehcWUV

 

 

 

 

 

 

Fukushima Nuclear Disaster

by Ryan Hay

 

aditya

The Great Eastern Earthquake
by Aditya Ponugupaty
The Great Eastern earthquake and the tsunami that occurred on March 11, 2011 caused the meltdown of three nuclear reactors within several days, and four hydrogen explosions. Huge quantities of radioactive elements have been continuously released into the air and water. It will induce an epidemic of cancer, as people inhale the radioactive elements, eat radioactive vegetables, rice, and meat, and drink radioactive milk and teas.

travis

Magnesium burns bright in color and the ash weights more than the metal, since MgO is not a gas.

 

carbon dioxideCarbon Dioxide: acidification of the oceans and the fertilization effect

 

chris 2

The Hidden Effects of Global Warming
By: Christopher Cassetta

 

Carbon Fertilization Effect: Carbon Dioxide Formation by Joseph Fowler III

Car

Carbon Dioxide and the Earth by Shuvai Mtangi

Tire

Tyrie Johnson views the triclinic structure of Copper II Sulfate and the tetragonal structure of Calcium Sulfate.

hayden

Hayden Wihjelm views the cubic structure of table salt.

hemp 1

Illegal Hemp Production by Rachel Wiley

hemp

First Hemp Fiber tech auto.

hemp1

Hemp uses by Sydney Koerner

hemp

Hemp and Society by Kolton Hill

victoria

Victoria Boller holding the limiting reactant demo.

steve

Limiting Reactants determine how much product that can be produced in a given reaction. Students learn that they will experience limiting reactants as a manager of a company. Managers take risks purchasing items to be sold at a higher cost, thus the number of items on hand is called the limiting reactants. Steve holds a flask that has 10 cm of magnesium metal and 50 ml of hydrochloric acid. Victoria holds a flask with 3 cm of magnesium metal and 50 ml of HCl. The reaction produces hydrogen gas which fills the balloon. The size of the balloon is determined by the amount of limiting reactant present.

steel wool 8

Stoichiometry concerns predicting a theoretical amount of product before the reaction occurs, so that when the actual value is produced in the experiment a percent yield can be calculated. Students learned that when managers of clothing stores like Von Maur order goods they have a theoretical dollar amount expected from the sale. However, changes in the weather or a bad economy can cause the store to discount and the actual money generated from the sale is compared to the theoretical in order to determine if the product should be ordered again. Students allowed the product to dry over night and will calculate the actual copper produced from the reaction to determine the percent yield.

well

One of the most impressive and significant features of the Periodic Table of Elements is the appearance of vertical groups of elements, which form "families". Elements that are in the same "family" or "group" form compounds that are similar in formula and physical properties.

 

Zachary Minor speaks about the mole.

 

Group mole project

 

Jeremy Smith lectures on the mole.

 

Kevoia Boller makes the mole musical.

 

 

Obama discovers a mole in the White House. by Janar Abdulkathem and Krupaben Parmar

 

The Hyman Fire Piston demonstrates the rise in temperature when a fixed mass of gas is compressed. A portion of tinder supported inside a transparent cylinder is ignited when the contained air is compressed by a hand operated piston.

dakota 1

Dakota Chappell uses the combined law apparatus to show that when the volume is decreased the pressure increases and the temperature increases.

dakota

The combined gas law is a gas law that combines Charles's law, Boyle's law, and Gay-Lussac's law. There is no official founder for this law; it is merely an amalgamation of the three previously discovered laws.  The combined gas law can be used to explain the mechanics where pressure, temperature, and volume are affected. For example: air conditioners, refrigerators and the formation of clouds, and also use in fluid mechanics and thermodynamics.

Final Exam Spring 2014

final

Click to take the Spring 2014 Final.

rachel

Rachel Wiley lite's a ritz peanut butter cracker.

burn 3

Olivia uses her math skills to calculate calorie content in the food she tested.